octane OLDSMOBILE SILHOUETTE 1994 Owners Manual

Fuel
Use regular unleaded gasoline rated at
87 octane or higher. It should meet
specifications
ASTM D4814 in the U.S.
and CGSB 3.5-92 in Canada. These
fuels should have the proper additives,
so you should not have to add anything
to the fuel.
In the
U.S. and Canada, it’s easy to be
sure you get the right kind
of gasoline
(unleaded). You’ll see “UNLEADED”
right on the pump. And only unleaded
nozzles will fit into your vehicle’s filler
neck.
Be sure the posted octane is at least
87.
If the octane is less than 87, you may
get
a heavy knocking noise when you drive.
If it‘s bad enough, it can damage
your engine.
If you’re using fuel rated at 87 octane or
higher and you still hear heavy
knocking, your engine needs service.
But don’t worry if you hear a little
pinging noise when you’re accelerating
or driving up a hill. That’s normal, and
you don’t have to buy a higher octane
fuel to get rid of pinging. It’s the heavy,
constant knock that means you have a
problem.
What about gasoline with blending
materials that contain oxygen
(oxygenates), such as MTBE or
alcohol?
MTBE is “methyl tertiary-butyl ether.”
Fuel that
is no more than 15% MTBE is
fine for your vehicle.
Ethanol is ethyl or grain alcohol.
Properly-blended fuel that is no more
than
10% ethanol is fine for your
vehicle.
Methanol is methyl or wood alcohol.
NOTICE:
Fuel that is more than 5%
methanol is bad for your vehicle.
Don’t use it. It can corrode metal
parts in your fuel system and also
damage plastic and rubber parts.
That damage wouldn’t be covered
under your warranty. And even at
5% or less, there must be
“cosolvents” and corrosion
preventers in this fuel to help avoid
these problems.
Gasolines for Cleaner Air
Your use of gasoline with deposit
control additives will help prevent
deposits from forming in your engine
and fuel system. That helps keep your
engine in tune and your emission
control system working properly. It’s
good for your vehicle, and you’ll be
doing your part for cleaner air.
Many gasolines are now blended with
oxygenates. General Motors
recommends that you use gasolines
with these blending materials, such as
183
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Remote Control ................................ 48 .. Sliding Door ..................................... 52
Long Distance Driving
..................... 146
Low Battery
...................................... 158
Low Fuel Warning ............................ 101
Low Oil Pressure Warning
............... 102
Low Traction Light
........................... 105
Lubricants and Fluids ...................... 227
Luggage Carrier
.................................. 92
Maintenance Record
..................... 246
Maintenance Schedule
..................... 234
Malfunction Indicator Lamp
........... 106
Manual Front Seat
............................. 12
Manual Lap-Shoulder Safety Belt
..... 23
Methanol in Gasoline
....................... 183
Mileage Indicator
Mirrors (see
Odometer G. Speedometer)
Inside
Manual Day/Night ............... 86
Outside Convex
............................... 87
Power Remote Control
.................... 87
Mountain Driving
............................ 147
New Vehicle “Break-In”
Night Driving
................................... 142
Night Vision
..................................... 142
Visor Vanity
..................................... 88
Requirements ........................... 57.
152 Octane
Requirements
(see
Fuel Requirements)
Odometer & Speedometer ................. 99
Oil. Engine
........................................ 190
Pressure Gage
................................ 102
Pressure Indicator
......................... 101
Quality
........................................... 19 1
Thickness ....................................... 192
Used Oil
......................................... 194
When to Change
............................ 193
Oil Warning
...................................... 101
Outside Rearview Mirrors ................. 87
Overhead Console
........................ 79. 95
Overheated Engine
........................... 165
Warnings ................ 166. 187. 198. 199
Owner Checks
& Services ............... 240
Rrk. Shifting Into
............................. 66
Parking Over Things That Burn
................... 67
Parking Brake
..................................... 65
Passenger Belts (see
Safety Belts)
Passing .............................................. 140
Periodic Maintenance Inspections
.. 243
Polishing and Waxing
With
the Engine Running
........... 67. 68
Payload
............................................. 206
(see
Appearance Care )
Power (Anti-Lock) Brakes ............... 135 Power
Door Locks
............................. 46
Power Mirrors
.................................... 87
Power Outlet. Accessory
.................... 84
Power Seat Controls
.......................... 13
Power Sliding Door .................... 52. 107
Power Steering
................................. 138
Power Steering Fluid ....... 199.225. 227
Power Windows
......................... 70. 223
During
.............................................. 30
Problems on the Road
...................... 157
Publications
...................................... 254
Pregnancy.
Use
of Safety Belts
Radiator Overheating
(see
Overheated Engine )
Radiator Pressure Cap ..................... 199
Radio (see
Audio Systems)
Reading Lights .................................... 80
Rear Climate Control
....................... 113
Rear Interior Lights ............................ 84
Rear Seats
........................................... 15
Removing ......................................... 16
Replacing
......................................... 18
Third Row Entry .............................. 15
Rear Window Defogger .................... 115
Rear Window Wiper and Washer
...... 79
Rearview Mirror
................................. 86
Reclining Seatbaclts
........................... 13
.. Ad~ustmg .......................................... 17
267
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Service Station Information
The Delco Freedom@ battery needs
no water.
See Page 203
Windshield Washer Fluid
See Page 200
Transaxle Fluid
See Page 195
Cold Tire Pressure
See Certification/Tire label on
rear edge of driver’s door.
See Page 208
Fuel
Capacity: 20 U.S. Gal. (76 L)
Use unleaded gas only,
87 octane or higher.
See Page 183
Hood Release
See Page 186
Cooling System
Check and add coolant only at the
coolant recovery tank. The fluid should
be at
or slightly above the FULL HOT
mark when the engine is warm.
See Page 197
Engine Oil
See Page 190
Spare Tire Pressure
Compact Spare: 60 psi (420 1tPa)
See Page 178
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